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Snezhnost [94]
1 year ago
5

A food handler has finished grilling a chicken breast for a sandwich. what should the food handler do before touching the chicke

n lettuce tomato and bun?
Biology
2 answers:
sladkih [1.3K]1 year ago
7 0
Before the food handler touch the chicken, lettuce, tomato and bun, the food handler should wash his hands first and ensure that he or she is wearing the right equipment when handling the food such as mask, gloves and goggles if necessary to prevent any contamination to the food.
Umnica [9.8K]1 year ago
3 0

A food handler placing a chicken breast on the grill and then placing tomato and lettuce on a bun is an example of cross-contamination.  

Prior to touching the chicken, lettuce, tomato, and bun, the food handler should wash his hands and make sure that he or she is wearing the right equipment at the time of handling the food. This can be a mask, gloves, and goggles if necessary to prevent any contamination of the food.


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Explain how the chemical structure of the carbon atom accounts for the differences between the male and female lions seen in the
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Answer:

in male lion, two methyl groups are present in its structure  while in female lion, two hydroxl groups are present in its structure

Explanation:

The chemical structure of the carbon atom is different in both male and female lion because both male and female lions have different sex harmones which are totally different from one another. In male lion, testosterone is a sex hormone whose chemical formula is C19H28O2 and two methyl groups and one hydroxl group are present in its structure while in female lion, oestradiol is a sex hormone having a chemical formula C18H24O2  and two hydroxyl groups are present.

7 0
1 year ago
The average length of a transcription unit along a eukaryotic dna molecule is about 27,000 nucleotide pairs, whereas an averaged
faust18 [17]
The best explanation is that it occurs because most eukaryotic genes and their RNA transcripts have long non-coding stretches of nucleotides that are not translated.
5 0
1 year ago
Bacteria with the ability to break down certain types of plastic are placed with a colony of E. coli bacteria that lack this abi
zloy xaker [14]

The answer is C

Plasmids are conferred through horizontal gene transfer in bacteria.  The ‘male’ bacteria develops a structure called pili that then attaches to the ‘female’ bacteria. It then transfers it’s replicated plasmid to the ‘female’ bacteria in a process called conjugation. This bacteria will hence have desirable traits that are coded for by the transferred genetic material ,such as antibiotic resistance, after a process called recombination.

6 0
2 years ago
Theodor W. Engelmann illuminated a filament of algae with light that passed through a prism, thus exposing different segments of
Mariana [72]

Answer:

C) Bacteria congregated in these areas because these areas had the most oxygen being released.

Explanation:

Below is the full question:

Theodor W. Engelmann illuminated a filament of algae with light that passed through a prism, thus exposing different segments of algae to different wavelengths of light. He added aerobic bacteria and then noted in which areas the bacteria congregated. He noted that the largest groups were found in the areas illuminated by the red and blue light.

What did Engelmann conclude about the congregation of bacteria in the red and blue areas?

A) Bacteria released excess carbon dioxide in these areas.

B) Bacteria congregated in these areas due to an increase in the temperature of the red and blue light.

C) Bacteria congregated in these areas because these areas had the most oxygen being released.

D) Bacteria are attracted to red and blue light and thus these wavelengths are more reactive than other wavelengths.

E) Bacteria congregated in these areas due to an increase in the temperature caused by an increase in photosynthesis.

The most efficient region of white light for photosynthesis has been found to be the blue and red region of the white light. Hence, these two regions must have had the most oxygen being released because they are the regions with the highest rates of photosynthesis.

<em>Aerobic bacteria thrived better in the regions illuminated by red and blue light because these regions had the highest oxygen production as a result of having the highest rates of photosynthesis.</em>

<em>The correct option is C.</em>

3 0
1 year ago
The almost pure cellulose obtained from the seed threads of Gossypium (cotton) is tough, fibrous, and completely insoluble in wa
olga55 [171]

Answer:

Cellulose is held by beta 1,4-glycosidic bonds making it linear while Glycogen is held by an alpha 1,4-glycosidic bond making it highly branched.

Explanation:

Cellulose and Glycogen are both carbohydrate polysaccharides formed from glucose monomers. According to the question, cellulose is a tough, fibrous, and insoluble (in water) polymer found to play a structural role in plants' cell wall while Glycogen is another polymer obtained from muscle or liver and disperses readily in hot water to make a turbid solution.

Although these two polysaccharides (cellulose and glycogen) are linked by (1, 4)-glycosidic bonds but the glucose monomers in CELLULOSE are linked by a beta 1,4-glycosidic, hence, making it a straight or linear polymer

GLYCOGEN, on the other hand, is linked by an alpha 1,4-glycosidic bond making it an highly branched polymer. This structure is responsible for the different physical properties of the two molecules.

6 0
2 years ago
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